Extension Methods For Deleting Files And Folders To Recycle Bin

Caveat: I use similar code, but it is not .NET Core compatible.

I too use extensions methods, in my case too much. They are easier to type, but harder to find where they are implemented. They are static methods, and cannot be in an interface. Thus they cannot be easily mocked for testing or overridden for different environments, such as Linux. Finally, I argue that an extension method which takes a string should operate on the characters, not recycle a file, or send mail or any other side effect. Trust me I have some weird extensions like 10.Seconds(), which returns the timespan == 10 seconds. And can be used as 10.Seconds.Sleep(); static TimeSpan Seconds(this integer) is close to a type conversion and is equivalent to TimeSpan.FromSeconds() so it is hard to see how it might need to be overrriden. Sleep(TimeSpan) is fine as a static method, but probably should not be an extension method, just to save a little typing. If less typing is the goal, you can use static usings, like "using static System.Threading.Thread". Creating a method with the same signature in a different namespace is at best confusing. Depending on the combination of usings, you may get one method, or the other or a compilation error. Making it an extension method, allows the extension method to be found with the needed using, but is not the intention of extension methods.